spring + hibernate

[chinedu efoagui]

hi ranchers
i am doing a small project on spring with hibernate .my issue is that

after entering data in a form for it to be added in a mysql table,
on pressing submit

the record/row is updated instead of adding a new record/row.
could u help me out!!

here is my controller extending MultiactionController

 
 
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// Decompiler options: packimports(3) 
// Source File Name:   Box79Controller.java
 
package com.mw.web;
 
import com.mw.model.Box79;
import com.mw.dao.UserDAO;
import com.mw.model.User;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.validation.Errors;
import org.springframework.web.bind.RequestUtils;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
 
public class Box79Controller extends MultiActionController
{
 
    public Box79Controller()
    {
        
        
    }
 
    public User getUser()
    {
        return user;
    }
 
    public void setUser(User user)
    {
        this.user = user;
    }
 
    public ModelAndView welcomeHandler(HttpServletRequest request, HttpServletResponse response)
        throws ServletException
    {
        return new ModelAndView("welcome");
    }
 
   
     public ModelAndView userHandler(HttpServletRequest request, HttpServletResponse response)
        throws ServletException
    {
    
        return new ModelAndView("addUser");
    }
      public ModelAndView addUserHandler(HttpServletRequest request, HttpServletResponse response)
        throws ServletException
    {
   
 // apply binder to custom target object
 ServletRequestDataBinder binder = new ServletRequestDataBinder(user);
 // register custom editors, if desired
// binder.registerCustomEditor(...);
 // trigger actual binding of request parameters
 binder.bind(request);
 // optionally evaluate binding errors
 Errors errors = binder.getErrors();
 
    String name = request.getParameter("username");
    String password =request.getParameter("password");

 User user = (User)binder.getTarget(); 
/*
// working code
 User user=new User();
 user.setUsername(name);
 user.setPassword(password);
  */  
  getUserDAO().storeUser(user);
  
return new ModelAndView("redirect:welcome.htm");
 
        
    }
 
    public UserDAO getUserDAO()
    {
        return userDAO;
    }
 
    public void setUserDAO(UserDAO userDAO)
    {
        this.userDAO = userDAO;
    }
 
    private User user=new User();
    private UserDAO userDAO;
 
    /**
     * Holds value of property box79.
     */
    private Box79 box79;
 
    /**
     * Getter for property box79.
     * @return Value of property box79.
     */
    public Box79 getBox79() {
 
        return this.box79;
    }
 
    /**
     * Setter for property box79.
     * @param box79 New value of property box79.
     */
    public void setBox79(Box79 box79) {
 
        this.box79 = box79;
    }
}